Improvement in illuminating vault-covers



T. HYATT.

`Illuminating Vau|t-Covers.

N0. 145,196. Patented Dec.2,1873.

/MM i am@ UNITED STATES PATENT OFFICE.

THADDEUS HYATT, OF NEV YORK, N. Y., ASSIGNOR TO ELIZABETH A. L. HYATT,OF SAME PLACE.

IMPROVEMENT IN ILLUMINATING v AULT-COVERS.

Specification forming part of Letters Patent No. 145,196, dated December2, 1673; application tiled October 22, 1873.

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To all whom it may concern Be it` known that I, Timelines HYATT, of NewYork, in the county of New York and in ,the State of New York, haveinvented certain new and useful Improvements in Ventilating Roof orPavement Plates 5 and do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawing, making a part of this specification, in whicFigure l is a plan view of the upper side of a vault or pavement tileprotected by my improved coveriug, and Fig. 2 is a vertical section ofthe sa1ne.

Letters of like name and kind refer to like parts in each of thefigures.

The design of my invention is to enable illuminating vault-covers,pavement-tiles, Sie., t-o be easily and thoroughly protected againstleakage, and their upper or bearing surfaces made to furnish a iirmbearing for the foot; to which end it consists in a vault-cover,pavement-tiles,.&c'., inelosed by means of a rubber shield, (with orwithout bearingpoi1'1ts,) which forms a packing for its illuminatinglenses, and between said tile and its surrounding frame, substantiallyas and for the purpose iereinafter specified.

In the annexed drawing, A represents a tile provided with a number oflight-openings, within each of which is secured a buttonheadilluminating-lens, B, while said tile in turn rests within and isinelosed by means of a surrounding frame, C. Before the lenses B areplaced in position, the upper surface, edge, and lower'surfaee, near thelatter, are covered with a rubber shield, I), which should be molded toshape so as to iit snugly to and upon said tile. Suitable openings,which correspond in size, shape, and position to the light openings ofthe tile A, are provided within the shield D, so as to enable the lensesB to be placed in position, for the heads of which lenses said shieldforms a packing, and enables a water-tight joint to be produced.

It' desired, tapering lenses may be employed, in which event theopenings within the rubber would require to be as small as the lower endof the lens, so that when pressed downward to position the swellingsides of said lens would carry with it the edges of the rubber and causeit to lit into the space between said lens and the sides of thelight-openings of the tile.

If the tile is to be walked upon or over, bearing-points l may be castupon the shield D, and the surface of the lenses protected fromabrasion.

Having thus fully set forth the nature and merits of my invention, whatI claim as new is* A vault-cover, pavement-tile, Ste., inelosed by meansof a rubber shield, (with or without bearing-points,) which forms apacking for its illuminating lenses and between said tile and itssurrounding frame substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this26th d ay of July, 1872 TnADnnUs HYATT.'

Ti t-nesses AMBRosE MONELL, GIIAnLns Srrn.

